Surname: MacLiag Forename(s): Muircheartach mac Con Ceartaich d. 1015. Nationality: Irish.
Chief Poet and Secretary of King Brian Boru. Biographical information: Wikipedia <https://en.wikipedia.org/wiki/Muircheartach_mac_Con_Ceartaich_Mac_Liag>
(18 March 2020). (JS)